blob: 6b1282c006b145d2b96921243b9e26e91c427f88 [file] [log] [blame]
Lennert Buytenhek91da11f2008-10-07 13:44:02 +00001/*
2 * net/dsa/slave.c - Slave device handling
Lennert Buytenheke84665c2009-03-20 09:52:09 +00003 * Copyright (c) 2008-2009 Marvell Semiconductor
Lennert Buytenhek91da11f2008-10-07 13:44:02 +00004 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 */
10
11#include <linux/list.h>
Lennert Buytenhekdf02c6f2008-11-10 21:53:12 -080012#include <linux/etherdevice.h>
Florian Fainellib73adef2015-02-24 13:15:33 -080013#include <linux/netdevice.h>
Lennert Buytenhek91da11f2008-10-07 13:44:02 +000014#include <linux/phy.h>
Florian Fainellia2820542014-10-17 16:02:13 -070015#include <linux/phy_fixed.h>
Florian Fainelli0d8bcdd2014-08-27 17:04:51 -070016#include <linux/of_net.h>
17#include <linux/of_mdio.h>
Andrew Lunn7f854422016-01-06 20:11:18 +010018#include <linux/mdio.h>
Florian Fainellib73adef2015-02-24 13:15:33 -080019#include <net/rtnetlink.h>
Scott Feldman98237d42015-03-15 21:07:15 -070020#include <net/switchdev.h>
Florian Fainellib73adef2015-02-24 13:15:33 -080021#include <linux/if_bridge.h>
Florian Fainelli04ff53f2015-07-31 11:42:57 -070022#include <linux/netpoll.h>
Lennert Buytenhek91da11f2008-10-07 13:44:02 +000023#include "dsa_priv.h"
24
25/* slave mii_bus handling ***************************************************/
26static int dsa_slave_phy_read(struct mii_bus *bus, int addr, int reg)
27{
28 struct dsa_switch *ds = bus->priv;
29
Florian Fainelli0d8bcdd2014-08-27 17:04:51 -070030 if (ds->phys_mii_mask & (1 << addr))
Vivien Didelot9d490b42016-08-23 12:38:56 -040031 return ds->ops->phy_read(ds, addr, reg);
Lennert Buytenhek91da11f2008-10-07 13:44:02 +000032
33 return 0xffff;
34}
35
36static int dsa_slave_phy_write(struct mii_bus *bus, int addr, int reg, u16 val)
37{
38 struct dsa_switch *ds = bus->priv;
39
Florian Fainelli0d8bcdd2014-08-27 17:04:51 -070040 if (ds->phys_mii_mask & (1 << addr))
Vivien Didelot9d490b42016-08-23 12:38:56 -040041 return ds->ops->phy_write(ds, addr, reg, val);
Lennert Buytenhek91da11f2008-10-07 13:44:02 +000042
43 return 0;
44}
45
46void dsa_slave_mii_bus_init(struct dsa_switch *ds)
47{
48 ds->slave_mii_bus->priv = (void *)ds;
49 ds->slave_mii_bus->name = "dsa slave smi";
50 ds->slave_mii_bus->read = dsa_slave_phy_read;
51 ds->slave_mii_bus->write = dsa_slave_phy_write;
Florian Fainelli0b7b4982016-06-07 16:32:38 -070052 snprintf(ds->slave_mii_bus->id, MII_BUS_ID_SIZE, "dsa-%d.%d",
53 ds->dst->tree, ds->index);
Andrew Lunnc33063d2016-05-10 23:27:23 +020054 ds->slave_mii_bus->parent = ds->dev;
Vivien Didelot24df8982015-01-20 19:13:32 -050055 ds->slave_mii_bus->phy_mask = ~ds->phys_mii_mask;
Lennert Buytenhek91da11f2008-10-07 13:44:02 +000056}
57
58
59/* slave device handling ****************************************************/
Nicolas Dichtelabd2be02015-04-02 17:07:08 +020060static int dsa_slave_get_iflink(const struct net_device *dev)
Lennert Buytenhekc0840802009-03-20 09:49:49 +000061{
62 struct dsa_slave_priv *p = netdev_priv(dev);
Lennert Buytenhekc0840802009-03-20 09:49:49 +000063
Nicolas Dichtelabd2be02015-04-02 17:07:08 +020064 return p->parent->dst->master_netdev->ifindex;
Lennert Buytenhekc0840802009-03-20 09:49:49 +000065}
66
Florian Fainellib73adef2015-02-24 13:15:33 -080067static inline bool dsa_port_is_bridged(struct dsa_slave_priv *p)
68{
69 return !!p->bridge_dev;
70}
71
Vivien Didelot4acfee82016-09-22 16:49:21 -040072static void dsa_port_set_stp_state(struct dsa_switch *ds, int port, u8 state)
73{
Vivien Didelot732f7942016-09-22 16:49:22 -040074 struct dsa_port *dp = &ds->ports[port];
75
Vivien Didelot4acfee82016-09-22 16:49:21 -040076 if (ds->ops->port_stp_state_set)
77 ds->ops->port_stp_state_set(ds, port, state);
Vivien Didelot732f7942016-09-22 16:49:22 -040078
79 if (ds->ops->port_fast_age) {
80 /* Fast age FDB entries or flush appropriate forwarding database
81 * for the given port, if we are moving it from Learning or
82 * Forwarding state, to Disabled or Blocking or Listening state.
83 */
84
85 if ((dp->stp_state == BR_STATE_LEARNING ||
86 dp->stp_state == BR_STATE_FORWARDING) &&
87 (state == BR_STATE_DISABLED ||
88 state == BR_STATE_BLOCKING ||
89 state == BR_STATE_LISTENING))
90 ds->ops->port_fast_age(ds, port);
91 }
92
93 dp->stp_state = state;
Vivien Didelot4acfee82016-09-22 16:49:21 -040094}
95
Lennert Buytenhek91da11f2008-10-07 13:44:02 +000096static int dsa_slave_open(struct net_device *dev)
97{
Lennert Buytenhekdf02c6f2008-11-10 21:53:12 -080098 struct dsa_slave_priv *p = netdev_priv(dev);
Lennert Buytenheke84665c2009-03-20 09:52:09 +000099 struct net_device *master = p->parent->dst->master_netdev;
Florian Fainellib2f2af22014-09-24 17:05:18 -0700100 struct dsa_switch *ds = p->parent;
Florian Fainellib73adef2015-02-24 13:15:33 -0800101 u8 stp_state = dsa_port_is_bridged(p) ?
102 BR_STATE_BLOCKING : BR_STATE_FORWARDING;
Lennert Buytenhekdf02c6f2008-11-10 21:53:12 -0800103 int err;
104
105 if (!(master->flags & IFF_UP))
106 return -ENETDOWN;
107
Joe Perches8feedbb2012-05-08 18:56:57 +0000108 if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) {
Jiri Pirkoa748ee22010-04-01 21:22:09 +0000109 err = dev_uc_add(master, dev->dev_addr);
Lennert Buytenhekdf02c6f2008-11-10 21:53:12 -0800110 if (err < 0)
111 goto out;
112 }
113
114 if (dev->flags & IFF_ALLMULTI) {
115 err = dev_set_allmulti(master, 1);
116 if (err < 0)
117 goto del_unicast;
118 }
119 if (dev->flags & IFF_PROMISC) {
120 err = dev_set_promiscuity(master, 1);
121 if (err < 0)
122 goto clear_allmulti;
123 }
124
Vivien Didelot9d490b42016-08-23 12:38:56 -0400125 if (ds->ops->port_enable) {
126 err = ds->ops->port_enable(ds, p->port, p->phy);
Florian Fainellib2f2af22014-09-24 17:05:18 -0700127 if (err)
128 goto clear_promisc;
129 }
130
Vivien Didelot4acfee82016-09-22 16:49:21 -0400131 dsa_port_set_stp_state(ds, p->port, stp_state);
Florian Fainellib73adef2015-02-24 13:15:33 -0800132
Florian Fainellif7f1de52014-09-24 17:05:17 -0700133 if (p->phy)
134 phy_start(p->phy);
135
Lennert Buytenhek91da11f2008-10-07 13:44:02 +0000136 return 0;
Lennert Buytenhekdf02c6f2008-11-10 21:53:12 -0800137
Florian Fainellib2f2af22014-09-24 17:05:18 -0700138clear_promisc:
139 if (dev->flags & IFF_PROMISC)
Gilad Ben-Yossef4fdeddf2015-06-25 16:50:13 +0300140 dev_set_promiscuity(master, -1);
Lennert Buytenhekdf02c6f2008-11-10 21:53:12 -0800141clear_allmulti:
142 if (dev->flags & IFF_ALLMULTI)
143 dev_set_allmulti(master, -1);
144del_unicast:
Joe Perches8feedbb2012-05-08 18:56:57 +0000145 if (!ether_addr_equal(dev->dev_addr, master->dev_addr))
Jiri Pirkoa748ee22010-04-01 21:22:09 +0000146 dev_uc_del(master, dev->dev_addr);
Lennert Buytenhekdf02c6f2008-11-10 21:53:12 -0800147out:
148 return err;
Lennert Buytenhek91da11f2008-10-07 13:44:02 +0000149}
150
151static int dsa_slave_close(struct net_device *dev)
152{
Lennert Buytenhekdf02c6f2008-11-10 21:53:12 -0800153 struct dsa_slave_priv *p = netdev_priv(dev);
Lennert Buytenheke84665c2009-03-20 09:52:09 +0000154 struct net_device *master = p->parent->dst->master_netdev;
Florian Fainellib2f2af22014-09-24 17:05:18 -0700155 struct dsa_switch *ds = p->parent;
Lennert Buytenhekdf02c6f2008-11-10 21:53:12 -0800156
Florian Fainellif7f1de52014-09-24 17:05:17 -0700157 if (p->phy)
158 phy_stop(p->phy);
159
Lennert Buytenhekdf02c6f2008-11-10 21:53:12 -0800160 dev_mc_unsync(master, dev);
Jiri Pirkoa748ee22010-04-01 21:22:09 +0000161 dev_uc_unsync(master, dev);
Lennert Buytenhekdf02c6f2008-11-10 21:53:12 -0800162 if (dev->flags & IFF_ALLMULTI)
163 dev_set_allmulti(master, -1);
164 if (dev->flags & IFF_PROMISC)
165 dev_set_promiscuity(master, -1);
166
Joe Perches8feedbb2012-05-08 18:56:57 +0000167 if (!ether_addr_equal(dev->dev_addr, master->dev_addr))
Jiri Pirkoa748ee22010-04-01 21:22:09 +0000168 dev_uc_del(master, dev->dev_addr);
Lennert Buytenhekdf02c6f2008-11-10 21:53:12 -0800169
Vivien Didelot9d490b42016-08-23 12:38:56 -0400170 if (ds->ops->port_disable)
171 ds->ops->port_disable(ds, p->port, p->phy);
Florian Fainellib2f2af22014-09-24 17:05:18 -0700172
Vivien Didelot4acfee82016-09-22 16:49:21 -0400173 dsa_port_set_stp_state(ds, p->port, BR_STATE_DISABLED);
Florian Fainellib73adef2015-02-24 13:15:33 -0800174
Lennert Buytenhek91da11f2008-10-07 13:44:02 +0000175 return 0;
176}
177
178static void dsa_slave_change_rx_flags(struct net_device *dev, int change)
179{
180 struct dsa_slave_priv *p = netdev_priv(dev);
Lennert Buytenheke84665c2009-03-20 09:52:09 +0000181 struct net_device *master = p->parent->dst->master_netdev;
Lennert Buytenhek91da11f2008-10-07 13:44:02 +0000182
183 if (change & IFF_ALLMULTI)
184 dev_set_allmulti(master, dev->flags & IFF_ALLMULTI ? 1 : -1);
185 if (change & IFF_PROMISC)
186 dev_set_promiscuity(master, dev->flags & IFF_PROMISC ? 1 : -1);
187}
188
189static void dsa_slave_set_rx_mode(struct net_device *dev)
190{
191 struct dsa_slave_priv *p = netdev_priv(dev);
Lennert Buytenheke84665c2009-03-20 09:52:09 +0000192 struct net_device *master = p->parent->dst->master_netdev;
Lennert Buytenhek91da11f2008-10-07 13:44:02 +0000193
194 dev_mc_sync(master, dev);
Jiri Pirkoa748ee22010-04-01 21:22:09 +0000195 dev_uc_sync(master, dev);
Lennert Buytenhek91da11f2008-10-07 13:44:02 +0000196}
197
Lennert Buytenhekdf02c6f2008-11-10 21:53:12 -0800198static int dsa_slave_set_mac_address(struct net_device *dev, void *a)
Lennert Buytenhek91da11f2008-10-07 13:44:02 +0000199{
Lennert Buytenhekdf02c6f2008-11-10 21:53:12 -0800200 struct dsa_slave_priv *p = netdev_priv(dev);
Lennert Buytenheke84665c2009-03-20 09:52:09 +0000201 struct net_device *master = p->parent->dst->master_netdev;
Lennert Buytenhekdf02c6f2008-11-10 21:53:12 -0800202 struct sockaddr *addr = a;
203 int err;
204
205 if (!is_valid_ether_addr(addr->sa_data))
206 return -EADDRNOTAVAIL;
207
208 if (!(dev->flags & IFF_UP))
209 goto out;
210
Joe Perches8feedbb2012-05-08 18:56:57 +0000211 if (!ether_addr_equal(addr->sa_data, master->dev_addr)) {
Jiri Pirkoa748ee22010-04-01 21:22:09 +0000212 err = dev_uc_add(master, addr->sa_data);
Lennert Buytenhekdf02c6f2008-11-10 21:53:12 -0800213 if (err < 0)
214 return err;
215 }
216
Joe Perches8feedbb2012-05-08 18:56:57 +0000217 if (!ether_addr_equal(dev->dev_addr, master->dev_addr))
Jiri Pirkoa748ee22010-04-01 21:22:09 +0000218 dev_uc_del(master, dev->dev_addr);
Lennert Buytenhekdf02c6f2008-11-10 21:53:12 -0800219
220out:
Joe Perchesd08f1612014-01-20 09:52:20 -0800221 ether_addr_copy(dev->dev_addr, addr->sa_data);
Lennert Buytenhek91da11f2008-10-07 13:44:02 +0000222
223 return 0;
224}
225
Vivien Didelot11149532015-08-13 12:52:17 -0400226static int dsa_slave_port_vlan_add(struct net_device *dev,
Jiri Pirko8f24f302015-10-01 11:03:43 +0200227 const struct switchdev_obj_port_vlan *vlan,
Jiri Pirkof8db8342015-09-24 10:02:42 +0200228 struct switchdev_trans *trans)
Vivien Didelot11149532015-08-13 12:52:17 -0400229{
Vivien Didelot11149532015-08-13 12:52:17 -0400230 struct dsa_slave_priv *p = netdev_priv(dev);
231 struct dsa_switch *ds = p->parent;
Vivien Didelot11149532015-08-13 12:52:17 -0400232
Jiri Pirko79a62eb2015-09-24 10:02:48 +0200233 if (switchdev_trans_ph_prepare(trans)) {
Vivien Didelot9d490b42016-08-23 12:38:56 -0400234 if (!ds->ops->port_vlan_prepare || !ds->ops->port_vlan_add)
Vivien Didelot11149532015-08-13 12:52:17 -0400235 return -EOPNOTSUPP;
236
Vivien Didelot9d490b42016-08-23 12:38:56 -0400237 return ds->ops->port_vlan_prepare(ds, p->port, vlan, trans);
Vivien Didelot11149532015-08-13 12:52:17 -0400238 }
239
Vivien Didelot9d490b42016-08-23 12:38:56 -0400240 ds->ops->port_vlan_add(ds, p->port, vlan, trans);
Vivien Didelot4d5770b2016-04-06 11:55:05 -0400241
Vivien Didelot11149532015-08-13 12:52:17 -0400242 return 0;
243}
244
245static int dsa_slave_port_vlan_del(struct net_device *dev,
Jiri Pirko8f24f302015-10-01 11:03:43 +0200246 const struct switchdev_obj_port_vlan *vlan)
Vivien Didelot11149532015-08-13 12:52:17 -0400247{
Vivien Didelot11149532015-08-13 12:52:17 -0400248 struct dsa_slave_priv *p = netdev_priv(dev);
249 struct dsa_switch *ds = p->parent;
Vivien Didelot11149532015-08-13 12:52:17 -0400250
Vivien Didelot9d490b42016-08-23 12:38:56 -0400251 if (!ds->ops->port_vlan_del)
Vivien Didelot11149532015-08-13 12:52:17 -0400252 return -EOPNOTSUPP;
253
Vivien Didelot9d490b42016-08-23 12:38:56 -0400254 return ds->ops->port_vlan_del(ds, p->port, vlan);
Vivien Didelot11149532015-08-13 12:52:17 -0400255}
256
257static int dsa_slave_port_vlan_dump(struct net_device *dev,
Jiri Pirko8f24f302015-10-01 11:03:43 +0200258 struct switchdev_obj_port_vlan *vlan,
Jiri Pirko648b4a92015-10-01 11:03:45 +0200259 switchdev_obj_dump_cb_t *cb)
Vivien Didelot11149532015-08-13 12:52:17 -0400260{
Vivien Didelot11149532015-08-13 12:52:17 -0400261 struct dsa_slave_priv *p = netdev_priv(dev);
262 struct dsa_switch *ds = p->parent;
Vivien Didelot11149532015-08-13 12:52:17 -0400263
Vivien Didelot9d490b42016-08-23 12:38:56 -0400264 if (ds->ops->port_vlan_dump)
265 return ds->ops->port_vlan_dump(ds, p->port, vlan, cb);
Vivien Didelot65aebfc2016-02-23 12:13:54 -0500266
Vivien Didelot477b1842016-02-23 12:13:56 -0500267 return -EOPNOTSUPP;
Vivien Didelot11149532015-08-13 12:52:17 -0400268}
269
Vivien Didelotba14d9e2015-08-10 09:09:53 -0400270static int dsa_slave_port_fdb_add(struct net_device *dev,
Jiri Pirko52ba57c2015-10-01 11:03:44 +0200271 const struct switchdev_obj_port_fdb *fdb,
Jiri Pirkof8db8342015-09-24 10:02:42 +0200272 struct switchdev_trans *trans)
David S. Millercdf09692015-08-11 12:00:37 -0700273{
274 struct dsa_slave_priv *p = netdev_priv(dev);
275 struct dsa_switch *ds = p->parent;
Vivien Didelot146a3202015-10-08 11:35:12 -0400276
Vivien Didelot8497aa62016-04-06 11:55:04 -0400277 if (switchdev_trans_ph_prepare(trans)) {
Vivien Didelot9d490b42016-08-23 12:38:56 -0400278 if (!ds->ops->port_fdb_prepare || !ds->ops->port_fdb_add)
Vivien Didelot8497aa62016-04-06 11:55:04 -0400279 return -EOPNOTSUPP;
David S. Millercdf09692015-08-11 12:00:37 -0700280
Vivien Didelot9d490b42016-08-23 12:38:56 -0400281 return ds->ops->port_fdb_prepare(ds, p->port, fdb, trans);
Vivien Didelot8497aa62016-04-06 11:55:04 -0400282 }
David S. Millercdf09692015-08-11 12:00:37 -0700283
Vivien Didelot9d490b42016-08-23 12:38:56 -0400284 ds->ops->port_fdb_add(ds, p->port, fdb, trans);
Vivien Didelot8497aa62016-04-06 11:55:04 -0400285
286 return 0;
David S. Millercdf09692015-08-11 12:00:37 -0700287}
288
Vivien Didelotba14d9e2015-08-10 09:09:53 -0400289static int dsa_slave_port_fdb_del(struct net_device *dev,
Jiri Pirko52ba57c2015-10-01 11:03:44 +0200290 const struct switchdev_obj_port_fdb *fdb)
David S. Millercdf09692015-08-11 12:00:37 -0700291{
292 struct dsa_slave_priv *p = netdev_priv(dev);
293 struct dsa_switch *ds = p->parent;
294 int ret = -EOPNOTSUPP;
295
Vivien Didelot9d490b42016-08-23 12:38:56 -0400296 if (ds->ops->port_fdb_del)
297 ret = ds->ops->port_fdb_del(ds, p->port, fdb);
David S. Millercdf09692015-08-11 12:00:37 -0700298
299 return ret;
300}
301
Vivien Didelotba14d9e2015-08-10 09:09:53 -0400302static int dsa_slave_port_fdb_dump(struct net_device *dev,
Jiri Pirko52ba57c2015-10-01 11:03:44 +0200303 struct switchdev_obj_port_fdb *fdb,
Jiri Pirko648b4a92015-10-01 11:03:45 +0200304 switchdev_obj_dump_cb_t *cb)
David S. Millercdf09692015-08-11 12:00:37 -0700305{
306 struct dsa_slave_priv *p = netdev_priv(dev);
307 struct dsa_switch *ds = p->parent;
David S. Millercdf09692015-08-11 12:00:37 -0700308
Vivien Didelot9d490b42016-08-23 12:38:56 -0400309 if (ds->ops->port_fdb_dump)
310 return ds->ops->port_fdb_dump(ds, p->port, fdb, cb);
Vivien Didelotea70ba92015-10-22 09:34:38 -0400311
Vivien Didelot1a49a2f2015-10-22 09:34:43 -0400312 return -EOPNOTSUPP;
David S. Millercdf09692015-08-11 12:00:37 -0700313}
314
Vivien Didelot8df30252016-08-31 11:50:03 -0400315static int dsa_slave_port_mdb_add(struct net_device *dev,
316 const struct switchdev_obj_port_mdb *mdb,
317 struct switchdev_trans *trans)
318{
319 struct dsa_slave_priv *p = netdev_priv(dev);
320 struct dsa_switch *ds = p->parent;
321
322 if (switchdev_trans_ph_prepare(trans)) {
323 if (!ds->ops->port_mdb_prepare || !ds->ops->port_mdb_add)
324 return -EOPNOTSUPP;
325
326 return ds->ops->port_mdb_prepare(ds, p->port, mdb, trans);
327 }
328
329 ds->ops->port_mdb_add(ds, p->port, mdb, trans);
330
331 return 0;
332}
333
334static int dsa_slave_port_mdb_del(struct net_device *dev,
335 const struct switchdev_obj_port_mdb *mdb)
336{
337 struct dsa_slave_priv *p = netdev_priv(dev);
338 struct dsa_switch *ds = p->parent;
339
340 if (ds->ops->port_mdb_del)
341 return ds->ops->port_mdb_del(ds, p->port, mdb);
342
343 return -EOPNOTSUPP;
344}
345
346static int dsa_slave_port_mdb_dump(struct net_device *dev,
347 struct switchdev_obj_port_mdb *mdb,
348 switchdev_obj_dump_cb_t *cb)
349{
350 struct dsa_slave_priv *p = netdev_priv(dev);
351 struct dsa_switch *ds = p->parent;
352
353 if (ds->ops->port_mdb_dump)
354 return ds->ops->port_mdb_dump(ds, p->port, mdb, cb);
355
356 return -EOPNOTSUPP;
357}
358
Lennert Buytenhek91da11f2008-10-07 13:44:02 +0000359static int dsa_slave_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
360{
361 struct dsa_slave_priv *p = netdev_priv(dev);
Lennert Buytenhek91da11f2008-10-07 13:44:02 +0000362
363 if (p->phy != NULL)
Richard Cochran28b04112010-07-17 08:48:55 +0000364 return phy_mii_ioctl(p->phy, ifr, cmd);
Lennert Buytenhek91da11f2008-10-07 13:44:02 +0000365
366 return -EOPNOTSUPP;
367}
368
Vivien Didelot43c44a92016-04-06 11:55:03 -0400369static int dsa_slave_stp_state_set(struct net_device *dev,
370 const struct switchdev_attr *attr,
371 struct switchdev_trans *trans)
Florian Fainellib73adef2015-02-24 13:15:33 -0800372{
373 struct dsa_slave_priv *p = netdev_priv(dev);
374 struct dsa_switch *ds = p->parent;
Florian Fainellib73adef2015-02-24 13:15:33 -0800375
Vivien Didelot43c44a92016-04-06 11:55:03 -0400376 if (switchdev_trans_ph_prepare(trans))
Vivien Didelot9d490b42016-08-23 12:38:56 -0400377 return ds->ops->port_stp_state_set ? 0 : -EOPNOTSUPP;
Florian Fainellib73adef2015-02-24 13:15:33 -0800378
Vivien Didelot4acfee82016-09-22 16:49:21 -0400379 dsa_port_set_stp_state(ds, p->port, attr->u.stp_state);
Vivien Didelot43c44a92016-04-06 11:55:03 -0400380
381 return 0;
Florian Fainellib73adef2015-02-24 13:15:33 -0800382}
383
Vivien Didelotfb2daba2016-02-26 13:16:00 -0500384static int dsa_slave_vlan_filtering(struct net_device *dev,
385 const struct switchdev_attr *attr,
386 struct switchdev_trans *trans)
387{
388 struct dsa_slave_priv *p = netdev_priv(dev);
389 struct dsa_switch *ds = p->parent;
390
391 /* bridge skips -EOPNOTSUPP, so skip the prepare phase */
392 if (switchdev_trans_ph_prepare(trans))
393 return 0;
394
Vivien Didelot9d490b42016-08-23 12:38:56 -0400395 if (ds->ops->port_vlan_filtering)
396 return ds->ops->port_vlan_filtering(ds, p->port,
Vivien Didelotfb2daba2016-02-26 13:16:00 -0500397 attr->u.vlan_filtering);
398
399 return 0;
400}
401
Vivien Didelot34a79f62016-07-18 20:45:38 -0400402static int dsa_fastest_ageing_time(struct dsa_switch *ds,
403 unsigned int ageing_time)
404{
405 int i;
406
407 for (i = 0; i < DSA_MAX_PORTS; ++i) {
408 struct dsa_port *dp = &ds->ports[i];
409
410 if (dp && dp->ageing_time && dp->ageing_time < ageing_time)
411 ageing_time = dp->ageing_time;
412 }
413
414 return ageing_time;
415}
416
417static int dsa_slave_ageing_time(struct net_device *dev,
418 const struct switchdev_attr *attr,
419 struct switchdev_trans *trans)
420{
421 struct dsa_slave_priv *p = netdev_priv(dev);
422 struct dsa_switch *ds = p->parent;
423 unsigned long ageing_jiffies = clock_t_to_jiffies(attr->u.ageing_time);
424 unsigned int ageing_time = jiffies_to_msecs(ageing_jiffies);
425
426 /* bridge skips -EOPNOTSUPP, so skip the prepare phase */
427 if (switchdev_trans_ph_prepare(trans))
428 return 0;
429
430 /* Keep the fastest ageing time in case of multiple bridges */
431 ds->ports[p->port].ageing_time = ageing_time;
432 ageing_time = dsa_fastest_ageing_time(ds, ageing_time);
433
Vivien Didelot9d490b42016-08-23 12:38:56 -0400434 if (ds->ops->set_ageing_time)
435 return ds->ops->set_ageing_time(ds, ageing_time);
Vivien Didelot34a79f62016-07-18 20:45:38 -0400436
437 return 0;
438}
439
Scott Feldman35636062015-05-10 09:47:51 -0700440static int dsa_slave_port_attr_set(struct net_device *dev,
Jiri Pirkof7fadf32015-10-14 19:40:49 +0200441 const struct switchdev_attr *attr,
Jiri Pirko7ea6eb32015-09-24 10:02:41 +0200442 struct switchdev_trans *trans)
Scott Feldman35636062015-05-10 09:47:51 -0700443{
Vivien Didelotb8d866a2015-09-29 12:38:36 -0400444 int ret;
Scott Feldman35636062015-05-10 09:47:51 -0700445
446 switch (attr->id) {
Jiri Pirko1f868392015-10-01 11:03:42 +0200447 case SWITCHDEV_ATTR_ID_PORT_STP_STATE:
Vivien Didelot43c44a92016-04-06 11:55:03 -0400448 ret = dsa_slave_stp_state_set(dev, attr, trans);
Scott Feldman35636062015-05-10 09:47:51 -0700449 break;
Vivien Didelotfb2daba2016-02-26 13:16:00 -0500450 case SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING:
451 ret = dsa_slave_vlan_filtering(dev, attr, trans);
452 break;
Vivien Didelot34a79f62016-07-18 20:45:38 -0400453 case SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME:
454 ret = dsa_slave_ageing_time(dev, attr, trans);
455 break;
Scott Feldman35636062015-05-10 09:47:51 -0700456 default:
457 ret = -EOPNOTSUPP;
458 break;
459 }
460
461 return ret;
462}
463
Vivien Didelotba14d9e2015-08-10 09:09:53 -0400464static int dsa_slave_port_obj_add(struct net_device *dev,
Jiri Pirko648b4a92015-10-01 11:03:45 +0200465 const struct switchdev_obj *obj,
Jiri Pirko7ea6eb32015-09-24 10:02:41 +0200466 struct switchdev_trans *trans)
Vivien Didelotba14d9e2015-08-10 09:09:53 -0400467{
468 int err;
469
470 /* For the prepare phase, ensure the full set of changes is feasable in
471 * one go in order to signal a failure properly. If an operation is not
472 * supported, return -EOPNOTSUPP.
473 */
474
Jiri Pirko9e8f4a52015-10-01 11:03:46 +0200475 switch (obj->id) {
Jiri Pirko57d80832015-10-01 11:03:41 +0200476 case SWITCHDEV_OBJ_ID_PORT_FDB:
Jiri Pirko648b4a92015-10-01 11:03:45 +0200477 err = dsa_slave_port_fdb_add(dev,
478 SWITCHDEV_OBJ_PORT_FDB(obj),
479 trans);
Vivien Didelotba14d9e2015-08-10 09:09:53 -0400480 break;
Vivien Didelot8df30252016-08-31 11:50:03 -0400481 case SWITCHDEV_OBJ_ID_PORT_MDB:
482 err = dsa_slave_port_mdb_add(dev, SWITCHDEV_OBJ_PORT_MDB(obj),
483 trans);
484 break;
Jiri Pirko57d80832015-10-01 11:03:41 +0200485 case SWITCHDEV_OBJ_ID_PORT_VLAN:
Jiri Pirko648b4a92015-10-01 11:03:45 +0200486 err = dsa_slave_port_vlan_add(dev,
487 SWITCHDEV_OBJ_PORT_VLAN(obj),
488 trans);
Vivien Didelot11149532015-08-13 12:52:17 -0400489 break;
Vivien Didelotba14d9e2015-08-10 09:09:53 -0400490 default:
491 err = -EOPNOTSUPP;
492 break;
493 }
494
495 return err;
496}
497
498static int dsa_slave_port_obj_del(struct net_device *dev,
Jiri Pirko648b4a92015-10-01 11:03:45 +0200499 const struct switchdev_obj *obj)
Vivien Didelotba14d9e2015-08-10 09:09:53 -0400500{
501 int err;
502
Jiri Pirko9e8f4a52015-10-01 11:03:46 +0200503 switch (obj->id) {
Jiri Pirko57d80832015-10-01 11:03:41 +0200504 case SWITCHDEV_OBJ_ID_PORT_FDB:
Jiri Pirko648b4a92015-10-01 11:03:45 +0200505 err = dsa_slave_port_fdb_del(dev,
506 SWITCHDEV_OBJ_PORT_FDB(obj));
Vivien Didelotba14d9e2015-08-10 09:09:53 -0400507 break;
Vivien Didelot8df30252016-08-31 11:50:03 -0400508 case SWITCHDEV_OBJ_ID_PORT_MDB:
509 err = dsa_slave_port_mdb_del(dev, SWITCHDEV_OBJ_PORT_MDB(obj));
510 break;
Jiri Pirko57d80832015-10-01 11:03:41 +0200511 case SWITCHDEV_OBJ_ID_PORT_VLAN:
Jiri Pirko648b4a92015-10-01 11:03:45 +0200512 err = dsa_slave_port_vlan_del(dev,
513 SWITCHDEV_OBJ_PORT_VLAN(obj));
Vivien Didelot11149532015-08-13 12:52:17 -0400514 break;
Vivien Didelotba14d9e2015-08-10 09:09:53 -0400515 default:
516 err = -EOPNOTSUPP;
517 break;
518 }
519
520 return err;
521}
522
523static int dsa_slave_port_obj_dump(struct net_device *dev,
Jiri Pirko648b4a92015-10-01 11:03:45 +0200524 struct switchdev_obj *obj,
525 switchdev_obj_dump_cb_t *cb)
Vivien Didelotba14d9e2015-08-10 09:09:53 -0400526{
527 int err;
528
Jiri Pirko9e8f4a52015-10-01 11:03:46 +0200529 switch (obj->id) {
Jiri Pirko57d80832015-10-01 11:03:41 +0200530 case SWITCHDEV_OBJ_ID_PORT_FDB:
Jiri Pirko648b4a92015-10-01 11:03:45 +0200531 err = dsa_slave_port_fdb_dump(dev,
532 SWITCHDEV_OBJ_PORT_FDB(obj),
533 cb);
Vivien Didelotba14d9e2015-08-10 09:09:53 -0400534 break;
Vivien Didelot8df30252016-08-31 11:50:03 -0400535 case SWITCHDEV_OBJ_ID_PORT_MDB:
536 err = dsa_slave_port_mdb_dump(dev, SWITCHDEV_OBJ_PORT_MDB(obj),
537 cb);
538 break;
Jiri Pirko57d80832015-10-01 11:03:41 +0200539 case SWITCHDEV_OBJ_ID_PORT_VLAN:
Jiri Pirko648b4a92015-10-01 11:03:45 +0200540 err = dsa_slave_port_vlan_dump(dev,
541 SWITCHDEV_OBJ_PORT_VLAN(obj),
542 cb);
Vivien Didelot11149532015-08-13 12:52:17 -0400543 break;
Vivien Didelotba14d9e2015-08-10 09:09:53 -0400544 default:
545 err = -EOPNOTSUPP;
546 break;
547 }
548
549 return err;
550}
551
Florian Fainellib73adef2015-02-24 13:15:33 -0800552static int dsa_slave_bridge_port_join(struct net_device *dev,
553 struct net_device *br)
554{
555 struct dsa_slave_priv *p = netdev_priv(dev);
556 struct dsa_switch *ds = p->parent;
557 int ret = -EOPNOTSUPP;
558
559 p->bridge_dev = br;
560
Vivien Didelot9d490b42016-08-23 12:38:56 -0400561 if (ds->ops->port_bridge_join)
562 ret = ds->ops->port_bridge_join(ds, p->port, br);
Florian Fainellib73adef2015-02-24 13:15:33 -0800563
Vivien Didelot6debb682016-03-13 16:21:34 -0400564 return ret == -EOPNOTSUPP ? 0 : ret;
Florian Fainellib73adef2015-02-24 13:15:33 -0800565}
566
Vivien Didelot16bfa702016-03-13 16:21:33 -0400567static void dsa_slave_bridge_port_leave(struct net_device *dev)
Florian Fainellib73adef2015-02-24 13:15:33 -0800568{
569 struct dsa_slave_priv *p = netdev_priv(dev);
570 struct dsa_switch *ds = p->parent;
Florian Fainellib73adef2015-02-24 13:15:33 -0800571
572
Vivien Didelot9d490b42016-08-23 12:38:56 -0400573 if (ds->ops->port_bridge_leave)
574 ds->ops->port_bridge_leave(ds, p->port);
Florian Fainellib73adef2015-02-24 13:15:33 -0800575
576 p->bridge_dev = NULL;
577
578 /* Port left the bridge, put in BR_STATE_DISABLED by the bridge layer,
579 * so allow it to be in BR_STATE_FORWARDING to be kept functional
580 */
Vivien Didelot4acfee82016-09-22 16:49:21 -0400581 dsa_port_set_stp_state(ds, p->port, BR_STATE_FORWARDING);
Florian Fainellib73adef2015-02-24 13:15:33 -0800582}
583
Scott Feldmanf8e20a92015-05-10 09:47:49 -0700584static int dsa_slave_port_attr_get(struct net_device *dev,
585 struct switchdev_attr *attr)
Florian Fainellib73adef2015-02-24 13:15:33 -0800586{
587 struct dsa_slave_priv *p = netdev_priv(dev);
588 struct dsa_switch *ds = p->parent;
589
Scott Feldmanf8e20a92015-05-10 09:47:49 -0700590 switch (attr->id) {
Jiri Pirko1f868392015-10-01 11:03:42 +0200591 case SWITCHDEV_ATTR_ID_PORT_PARENT_ID:
Scott Feldman42275bd2015-05-13 11:16:50 -0700592 attr->u.ppid.id_len = sizeof(ds->index);
593 memcpy(&attr->u.ppid.id, &ds->index, attr->u.ppid.id_len);
Scott Feldmanf8e20a92015-05-10 09:47:49 -0700594 break;
595 default:
596 return -EOPNOTSUPP;
597 }
Florian Fainellib73adef2015-02-24 13:15:33 -0800598
599 return 0;
600}
601
Florian Fainelli04ff53f2015-07-31 11:42:57 -0700602static inline netdev_tx_t dsa_netpoll_send_skb(struct dsa_slave_priv *p,
603 struct sk_buff *skb)
604{
605#ifdef CONFIG_NET_POLL_CONTROLLER
606 if (p->netpoll)
607 netpoll_send_skb(p->netpoll, skb);
608#else
609 BUG();
610#endif
611 return NETDEV_TX_OK;
612}
613
Florian Fainelli3e8a72d2014-08-27 17:04:46 -0700614static netdev_tx_t dsa_slave_xmit(struct sk_buff *skb, struct net_device *dev)
615{
616 struct dsa_slave_priv *p = netdev_priv(dev);
Florian Fainelli4ed70ce2015-07-31 11:42:56 -0700617 struct sk_buff *nskb;
Florian Fainelli3e8a72d2014-08-27 17:04:46 -0700618
Florian Fainelli4ed70ce2015-07-31 11:42:56 -0700619 dev->stats.tx_packets++;
620 dev->stats.tx_bytes += skb->len;
Florian Fainelli3e8a72d2014-08-27 17:04:46 -0700621
Florian Fainelli4ed70ce2015-07-31 11:42:56 -0700622 /* Transmit function may have to reallocate the original SKB */
623 nskb = p->xmit(skb, dev);
624 if (!nskb)
625 return NETDEV_TX_OK;
Florian Fainelli5aed85c2014-08-27 17:04:52 -0700626
Florian Fainelli04ff53f2015-07-31 11:42:57 -0700627 /* SKB for netpoll still need to be mangled with the protocol-specific
628 * tag to be successfully transmitted
629 */
630 if (unlikely(netpoll_tx_running(dev)))
631 return dsa_netpoll_send_skb(p, nskb);
632
Florian Fainelli4ed70ce2015-07-31 11:42:56 -0700633 /* Queue the SKB for transmission on the parent interface, but
634 * do not modify its EtherType
635 */
636 nskb->dev = p->parent->dst->master_netdev;
637 dev_queue_xmit(nskb);
Florian Fainelli5aed85c2014-08-27 17:04:52 -0700638
639 return NETDEV_TX_OK;
640}
641
Lennert Buytenhek91da11f2008-10-07 13:44:02 +0000642/* ethtool operations *******************************************************/
643static int
644dsa_slave_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
645{
646 struct dsa_slave_priv *p = netdev_priv(dev);
647 int err;
648
649 err = -EOPNOTSUPP;
650 if (p->phy != NULL) {
651 err = phy_read_status(p->phy);
652 if (err == 0)
653 err = phy_ethtool_gset(p->phy, cmd);
654 }
655
656 return err;
657}
658
659static int
660dsa_slave_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
661{
662 struct dsa_slave_priv *p = netdev_priv(dev);
663
664 if (p->phy != NULL)
665 return phy_ethtool_sset(p->phy, cmd);
666
667 return -EOPNOTSUPP;
668}
669
670static void dsa_slave_get_drvinfo(struct net_device *dev,
671 struct ethtool_drvinfo *drvinfo)
672{
Jiri Pirko7826d432013-01-06 00:44:26 +0000673 strlcpy(drvinfo->driver, "dsa", sizeof(drvinfo->driver));
674 strlcpy(drvinfo->version, dsa_driver_version, sizeof(drvinfo->version));
675 strlcpy(drvinfo->fw_version, "N/A", sizeof(drvinfo->fw_version));
676 strlcpy(drvinfo->bus_info, "platform", sizeof(drvinfo->bus_info));
Lennert Buytenhek91da11f2008-10-07 13:44:02 +0000677}
678
Guenter Roeck3d762a02014-10-29 10:45:04 -0700679static int dsa_slave_get_regs_len(struct net_device *dev)
680{
681 struct dsa_slave_priv *p = netdev_priv(dev);
682 struct dsa_switch *ds = p->parent;
683
Vivien Didelot9d490b42016-08-23 12:38:56 -0400684 if (ds->ops->get_regs_len)
685 return ds->ops->get_regs_len(ds, p->port);
Guenter Roeck3d762a02014-10-29 10:45:04 -0700686
687 return -EOPNOTSUPP;
688}
689
690static void
691dsa_slave_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *_p)
692{
693 struct dsa_slave_priv *p = netdev_priv(dev);
694 struct dsa_switch *ds = p->parent;
695
Vivien Didelot9d490b42016-08-23 12:38:56 -0400696 if (ds->ops->get_regs)
697 ds->ops->get_regs(ds, p->port, regs, _p);
Guenter Roeck3d762a02014-10-29 10:45:04 -0700698}
699
Lennert Buytenhek91da11f2008-10-07 13:44:02 +0000700static int dsa_slave_nway_reset(struct net_device *dev)
701{
702 struct dsa_slave_priv *p = netdev_priv(dev);
703
704 if (p->phy != NULL)
705 return genphy_restart_aneg(p->phy);
706
707 return -EOPNOTSUPP;
708}
709
710static u32 dsa_slave_get_link(struct net_device *dev)
711{
712 struct dsa_slave_priv *p = netdev_priv(dev);
713
714 if (p->phy != NULL) {
715 genphy_update_link(p->phy);
716 return p->phy->link;
717 }
718
719 return -EOPNOTSUPP;
720}
721
Guenter Roeck6793abb2014-10-29 10:45:01 -0700722static int dsa_slave_get_eeprom_len(struct net_device *dev)
723{
724 struct dsa_slave_priv *p = netdev_priv(dev);
725 struct dsa_switch *ds = p->parent;
726
Andrew Lunn0e576042016-06-04 21:16:52 +0200727 if (ds->cd && ds->cd->eeprom_len)
Andrew Lunnff049552016-05-10 23:27:24 +0200728 return ds->cd->eeprom_len;
Guenter Roeck6793abb2014-10-29 10:45:01 -0700729
Vivien Didelot9d490b42016-08-23 12:38:56 -0400730 if (ds->ops->get_eeprom_len)
731 return ds->ops->get_eeprom_len(ds);
Guenter Roeck6793abb2014-10-29 10:45:01 -0700732
733 return 0;
734}
735
736static int dsa_slave_get_eeprom(struct net_device *dev,
737 struct ethtool_eeprom *eeprom, u8 *data)
738{
739 struct dsa_slave_priv *p = netdev_priv(dev);
740 struct dsa_switch *ds = p->parent;
741
Vivien Didelot9d490b42016-08-23 12:38:56 -0400742 if (ds->ops->get_eeprom)
743 return ds->ops->get_eeprom(ds, eeprom, data);
Guenter Roeck6793abb2014-10-29 10:45:01 -0700744
745 return -EOPNOTSUPP;
746}
747
748static int dsa_slave_set_eeprom(struct net_device *dev,
749 struct ethtool_eeprom *eeprom, u8 *data)
750{
751 struct dsa_slave_priv *p = netdev_priv(dev);
752 struct dsa_switch *ds = p->parent;
753
Vivien Didelot9d490b42016-08-23 12:38:56 -0400754 if (ds->ops->set_eeprom)
755 return ds->ops->set_eeprom(ds, eeprom, data);
Guenter Roeck6793abb2014-10-29 10:45:01 -0700756
757 return -EOPNOTSUPP;
758}
759
Lennert Buytenhek91da11f2008-10-07 13:44:02 +0000760static void dsa_slave_get_strings(struct net_device *dev,
761 uint32_t stringset, uint8_t *data)
762{
763 struct dsa_slave_priv *p = netdev_priv(dev);
764 struct dsa_switch *ds = p->parent;
765
766 if (stringset == ETH_SS_STATS) {
767 int len = ETH_GSTRING_LEN;
768
769 strncpy(data, "tx_packets", len);
770 strncpy(data + len, "tx_bytes", len);
771 strncpy(data + 2 * len, "rx_packets", len);
772 strncpy(data + 3 * len, "rx_bytes", len);
Vivien Didelot9d490b42016-08-23 12:38:56 -0400773 if (ds->ops->get_strings)
774 ds->ops->get_strings(ds, p->port, data + 4 * len);
Lennert Buytenhek91da11f2008-10-07 13:44:02 +0000775 }
776}
777
Florian Fainellibadf3ad2016-04-27 11:45:14 -0700778static void dsa_cpu_port_get_ethtool_stats(struct net_device *dev,
779 struct ethtool_stats *stats,
780 uint64_t *data)
781{
782 struct dsa_switch_tree *dst = dev->dsa_ptr;
783 struct dsa_switch *ds = dst->ds[0];
784 s8 cpu_port = dst->cpu_port;
785 int count = 0;
786
787 if (dst->master_ethtool_ops.get_sset_count) {
788 count = dst->master_ethtool_ops.get_sset_count(dev,
789 ETH_SS_STATS);
790 dst->master_ethtool_ops.get_ethtool_stats(dev, stats, data);
791 }
792
Vivien Didelot9d490b42016-08-23 12:38:56 -0400793 if (ds->ops->get_ethtool_stats)
794 ds->ops->get_ethtool_stats(ds, cpu_port, data + count);
Florian Fainellibadf3ad2016-04-27 11:45:14 -0700795}
796
797static int dsa_cpu_port_get_sset_count(struct net_device *dev, int sset)
798{
799 struct dsa_switch_tree *dst = dev->dsa_ptr;
800 struct dsa_switch *ds = dst->ds[0];
801 int count = 0;
802
803 if (dst->master_ethtool_ops.get_sset_count)
804 count += dst->master_ethtool_ops.get_sset_count(dev, sset);
805
Vivien Didelot9d490b42016-08-23 12:38:56 -0400806 if (sset == ETH_SS_STATS && ds->ops->get_sset_count)
807 count += ds->ops->get_sset_count(ds);
Florian Fainellibadf3ad2016-04-27 11:45:14 -0700808
809 return count;
810}
811
812static void dsa_cpu_port_get_strings(struct net_device *dev,
813 uint32_t stringset, uint8_t *data)
814{
815 struct dsa_switch_tree *dst = dev->dsa_ptr;
816 struct dsa_switch *ds = dst->ds[0];
817 s8 cpu_port = dst->cpu_port;
818 int len = ETH_GSTRING_LEN;
819 int mcount = 0, count;
820 unsigned int i;
821 uint8_t pfx[4];
822 uint8_t *ndata;
823
824 snprintf(pfx, sizeof(pfx), "p%.2d", cpu_port);
825 /* We do not want to be NULL-terminated, since this is a prefix */
826 pfx[sizeof(pfx) - 1] = '_';
827
828 if (dst->master_ethtool_ops.get_sset_count) {
829 mcount = dst->master_ethtool_ops.get_sset_count(dev,
830 ETH_SS_STATS);
831 dst->master_ethtool_ops.get_strings(dev, stringset, data);
832 }
833
Vivien Didelot9d490b42016-08-23 12:38:56 -0400834 if (stringset == ETH_SS_STATS && ds->ops->get_strings) {
Florian Fainellibadf3ad2016-04-27 11:45:14 -0700835 ndata = data + mcount * len;
836 /* This function copies ETH_GSTRINGS_LEN bytes, we will mangle
837 * the output after to prepend our CPU port prefix we
838 * constructed earlier
839 */
Vivien Didelot9d490b42016-08-23 12:38:56 -0400840 ds->ops->get_strings(ds, cpu_port, ndata);
841 count = ds->ops->get_sset_count(ds);
Florian Fainellibadf3ad2016-04-27 11:45:14 -0700842 for (i = 0; i < count; i++) {
843 memmove(ndata + (i * len + sizeof(pfx)),
844 ndata + i * len, len - sizeof(pfx));
845 memcpy(ndata + i * len, pfx, sizeof(pfx));
846 }
847 }
848}
849
Lennert Buytenhek91da11f2008-10-07 13:44:02 +0000850static void dsa_slave_get_ethtool_stats(struct net_device *dev,
851 struct ethtool_stats *stats,
852 uint64_t *data)
853{
854 struct dsa_slave_priv *p = netdev_priv(dev);
855 struct dsa_switch *ds = p->parent;
856
Vivien Didelot46e7b8d2016-04-18 16:10:24 -0400857 data[0] = dev->stats.tx_packets;
858 data[1] = dev->stats.tx_bytes;
859 data[2] = dev->stats.rx_packets;
860 data[3] = dev->stats.rx_bytes;
Vivien Didelot9d490b42016-08-23 12:38:56 -0400861 if (ds->ops->get_ethtool_stats)
862 ds->ops->get_ethtool_stats(ds, p->port, data + 4);
Lennert Buytenhek91da11f2008-10-07 13:44:02 +0000863}
864
865static int dsa_slave_get_sset_count(struct net_device *dev, int sset)
866{
867 struct dsa_slave_priv *p = netdev_priv(dev);
868 struct dsa_switch *ds = p->parent;
869
870 if (sset == ETH_SS_STATS) {
871 int count;
872
873 count = 4;
Vivien Didelot9d490b42016-08-23 12:38:56 -0400874 if (ds->ops->get_sset_count)
875 count += ds->ops->get_sset_count(ds);
Lennert Buytenhek91da11f2008-10-07 13:44:02 +0000876
877 return count;
878 }
879
880 return -EOPNOTSUPP;
881}
882
Florian Fainelli19e57c42014-09-18 17:31:24 -0700883static void dsa_slave_get_wol(struct net_device *dev, struct ethtool_wolinfo *w)
884{
885 struct dsa_slave_priv *p = netdev_priv(dev);
886 struct dsa_switch *ds = p->parent;
887
Vivien Didelot9d490b42016-08-23 12:38:56 -0400888 if (ds->ops->get_wol)
889 ds->ops->get_wol(ds, p->port, w);
Florian Fainelli19e57c42014-09-18 17:31:24 -0700890}
891
892static int dsa_slave_set_wol(struct net_device *dev, struct ethtool_wolinfo *w)
893{
894 struct dsa_slave_priv *p = netdev_priv(dev);
895 struct dsa_switch *ds = p->parent;
896 int ret = -EOPNOTSUPP;
897
Vivien Didelot9d490b42016-08-23 12:38:56 -0400898 if (ds->ops->set_wol)
899 ret = ds->ops->set_wol(ds, p->port, w);
Florian Fainelli19e57c42014-09-18 17:31:24 -0700900
901 return ret;
902}
903
Florian Fainelli79052882014-09-24 17:05:21 -0700904static int dsa_slave_set_eee(struct net_device *dev, struct ethtool_eee *e)
905{
906 struct dsa_slave_priv *p = netdev_priv(dev);
907 struct dsa_switch *ds = p->parent;
908 int ret;
909
Vivien Didelot9d490b42016-08-23 12:38:56 -0400910 if (!ds->ops->set_eee)
Florian Fainelli79052882014-09-24 17:05:21 -0700911 return -EOPNOTSUPP;
912
Vivien Didelot9d490b42016-08-23 12:38:56 -0400913 ret = ds->ops->set_eee(ds, p->port, p->phy, e);
Florian Fainelli79052882014-09-24 17:05:21 -0700914 if (ret)
915 return ret;
916
917 if (p->phy)
918 ret = phy_ethtool_set_eee(p->phy, e);
919
920 return ret;
921}
922
923static int dsa_slave_get_eee(struct net_device *dev, struct ethtool_eee *e)
924{
925 struct dsa_slave_priv *p = netdev_priv(dev);
926 struct dsa_switch *ds = p->parent;
927 int ret;
928
Vivien Didelot9d490b42016-08-23 12:38:56 -0400929 if (!ds->ops->get_eee)
Florian Fainelli79052882014-09-24 17:05:21 -0700930 return -EOPNOTSUPP;
931
Vivien Didelot9d490b42016-08-23 12:38:56 -0400932 ret = ds->ops->get_eee(ds, p->port, e);
Florian Fainelli79052882014-09-24 17:05:21 -0700933 if (ret)
934 return ret;
935
936 if (p->phy)
937 ret = phy_ethtool_get_eee(p->phy, e);
938
939 return ret;
940}
941
Florian Fainelli04ff53f2015-07-31 11:42:57 -0700942#ifdef CONFIG_NET_POLL_CONTROLLER
943static int dsa_slave_netpoll_setup(struct net_device *dev,
944 struct netpoll_info *ni)
945{
946 struct dsa_slave_priv *p = netdev_priv(dev);
947 struct dsa_switch *ds = p->parent;
948 struct net_device *master = ds->dst->master_netdev;
949 struct netpoll *netpoll;
950 int err = 0;
951
952 netpoll = kzalloc(sizeof(*netpoll), GFP_KERNEL);
953 if (!netpoll)
954 return -ENOMEM;
955
956 err = __netpoll_setup(netpoll, master);
957 if (err) {
958 kfree(netpoll);
959 goto out;
960 }
961
962 p->netpoll = netpoll;
963out:
964 return err;
965}
966
967static void dsa_slave_netpoll_cleanup(struct net_device *dev)
968{
969 struct dsa_slave_priv *p = netdev_priv(dev);
970 struct netpoll *netpoll = p->netpoll;
971
972 if (!netpoll)
973 return;
974
975 p->netpoll = NULL;
976
977 __netpoll_free_async(netpoll);
978}
979
980static void dsa_slave_poll_controller(struct net_device *dev)
981{
982}
983#endif
984
Florian Fainelliaf421922016-06-07 16:32:41 -0700985void dsa_cpu_port_ethtool_init(struct ethtool_ops *ops)
986{
987 ops->get_sset_count = dsa_cpu_port_get_sset_count;
988 ops->get_ethtool_stats = dsa_cpu_port_get_ethtool_stats;
989 ops->get_strings = dsa_cpu_port_get_strings;
990}
991
Lennert Buytenhek91da11f2008-10-07 13:44:02 +0000992static const struct ethtool_ops dsa_slave_ethtool_ops = {
993 .get_settings = dsa_slave_get_settings,
994 .set_settings = dsa_slave_set_settings,
995 .get_drvinfo = dsa_slave_get_drvinfo,
Guenter Roeck3d762a02014-10-29 10:45:04 -0700996 .get_regs_len = dsa_slave_get_regs_len,
997 .get_regs = dsa_slave_get_regs,
Lennert Buytenhek91da11f2008-10-07 13:44:02 +0000998 .nway_reset = dsa_slave_nway_reset,
999 .get_link = dsa_slave_get_link,
Guenter Roeck6793abb2014-10-29 10:45:01 -07001000 .get_eeprom_len = dsa_slave_get_eeprom_len,
1001 .get_eeprom = dsa_slave_get_eeprom,
1002 .set_eeprom = dsa_slave_set_eeprom,
Lennert Buytenhek91da11f2008-10-07 13:44:02 +00001003 .get_strings = dsa_slave_get_strings,
1004 .get_ethtool_stats = dsa_slave_get_ethtool_stats,
1005 .get_sset_count = dsa_slave_get_sset_count,
Florian Fainelli19e57c42014-09-18 17:31:24 -07001006 .set_wol = dsa_slave_set_wol,
1007 .get_wol = dsa_slave_get_wol,
Florian Fainelli79052882014-09-24 17:05:21 -07001008 .set_eee = dsa_slave_set_eee,
1009 .get_eee = dsa_slave_get_eee,
Lennert Buytenhek91da11f2008-10-07 13:44:02 +00001010};
1011
Florian Fainelli3e8a72d2014-08-27 17:04:46 -07001012static const struct net_device_ops dsa_slave_netdev_ops = {
Stephen Hemmingerd442ad42009-01-06 16:45:26 -08001013 .ndo_open = dsa_slave_open,
1014 .ndo_stop = dsa_slave_close,
Florian Fainelli3e8a72d2014-08-27 17:04:46 -07001015 .ndo_start_xmit = dsa_slave_xmit,
Stephen Hemmingerd442ad42009-01-06 16:45:26 -08001016 .ndo_change_rx_flags = dsa_slave_change_rx_flags,
1017 .ndo_set_rx_mode = dsa_slave_set_rx_mode,
Stephen Hemmingerd442ad42009-01-06 16:45:26 -08001018 .ndo_set_mac_address = dsa_slave_set_mac_address,
Vivien Didelotba14d9e2015-08-10 09:09:53 -04001019 .ndo_fdb_add = switchdev_port_fdb_add,
1020 .ndo_fdb_del = switchdev_port_fdb_del,
1021 .ndo_fdb_dump = switchdev_port_fdb_dump,
Stephen Hemmingerd442ad42009-01-06 16:45:26 -08001022 .ndo_do_ioctl = dsa_slave_ioctl,
Nicolas Dichtelabd2be02015-04-02 17:07:08 +02001023 .ndo_get_iflink = dsa_slave_get_iflink,
Florian Fainelli04ff53f2015-07-31 11:42:57 -07001024#ifdef CONFIG_NET_POLL_CONTROLLER
1025 .ndo_netpoll_setup = dsa_slave_netpoll_setup,
1026 .ndo_netpoll_cleanup = dsa_slave_netpoll_cleanup,
1027 .ndo_poll_controller = dsa_slave_poll_controller,
1028#endif
Vivien Didelot11149532015-08-13 12:52:17 -04001029 .ndo_bridge_getlink = switchdev_port_bridge_getlink,
1030 .ndo_bridge_setlink = switchdev_port_bridge_setlink,
1031 .ndo_bridge_dellink = switchdev_port_bridge_dellink,
Scott Feldman98237d42015-03-15 21:07:15 -07001032};
1033
Jiri Pirko9d47c0a2015-05-10 09:47:47 -07001034static const struct switchdev_ops dsa_slave_switchdev_ops = {
Scott Feldmanf8e20a92015-05-10 09:47:49 -07001035 .switchdev_port_attr_get = dsa_slave_port_attr_get,
Scott Feldman35636062015-05-10 09:47:51 -07001036 .switchdev_port_attr_set = dsa_slave_port_attr_set,
Vivien Didelotba14d9e2015-08-10 09:09:53 -04001037 .switchdev_port_obj_add = dsa_slave_port_obj_add,
1038 .switchdev_port_obj_del = dsa_slave_port_obj_del,
1039 .switchdev_port_obj_dump = dsa_slave_port_obj_dump,
Stephen Hemmingerd442ad42009-01-06 16:45:26 -08001040};
Lennert Buytenhek91da11f2008-10-07 13:44:02 +00001041
Florian Fainellif37db852015-09-23 18:19:58 -07001042static struct device_type dsa_type = {
1043 .name = "dsa",
1044};
1045
Florian Fainelli0d8bcdd2014-08-27 17:04:51 -07001046static void dsa_slave_adjust_link(struct net_device *dev)
1047{
1048 struct dsa_slave_priv *p = netdev_priv(dev);
Florian Fainelliec9436b2014-08-27 17:04:53 -07001049 struct dsa_switch *ds = p->parent;
Florian Fainelli0d8bcdd2014-08-27 17:04:51 -07001050 unsigned int status_changed = 0;
1051
1052 if (p->old_link != p->phy->link) {
1053 status_changed = 1;
1054 p->old_link = p->phy->link;
1055 }
1056
1057 if (p->old_duplex != p->phy->duplex) {
1058 status_changed = 1;
1059 p->old_duplex = p->phy->duplex;
1060 }
1061
1062 if (p->old_pause != p->phy->pause) {
1063 status_changed = 1;
1064 p->old_pause = p->phy->pause;
1065 }
1066
Vivien Didelot9d490b42016-08-23 12:38:56 -04001067 if (ds->ops->adjust_link && status_changed)
1068 ds->ops->adjust_link(ds, p->port, p->phy);
Florian Fainelliec9436b2014-08-27 17:04:53 -07001069
Florian Fainelli0d8bcdd2014-08-27 17:04:51 -07001070 if (status_changed)
1071 phy_print_status(p->phy);
1072}
1073
Florian Fainellice31b312014-08-27 17:04:54 -07001074static int dsa_slave_fixed_link_update(struct net_device *dev,
1075 struct fixed_phy_status *status)
1076{
Andrew Lunnb71be352016-03-12 00:01:37 +01001077 struct dsa_slave_priv *p;
1078 struct dsa_switch *ds;
Florian Fainellice31b312014-08-27 17:04:54 -07001079
Andrew Lunnb71be352016-03-12 00:01:37 +01001080 if (dev) {
1081 p = netdev_priv(dev);
1082 ds = p->parent;
Vivien Didelot9d490b42016-08-23 12:38:56 -04001083 if (ds->ops->fixed_link_update)
1084 ds->ops->fixed_link_update(ds, p->port, status);
Andrew Lunnb71be352016-03-12 00:01:37 +01001085 }
Florian Fainellice31b312014-08-27 17:04:54 -07001086
1087 return 0;
1088}
1089
Lennert Buytenhek91da11f2008-10-07 13:44:02 +00001090/* slave device setup *******************************************************/
Florian Fainellic305c162015-03-10 16:57:12 -07001091static int dsa_slave_phy_connect(struct dsa_slave_priv *p,
Florian Fainellicd28a1a2015-03-10 16:57:13 -07001092 struct net_device *slave_dev,
1093 int addr)
Florian Fainellic305c162015-03-10 16:57:12 -07001094{
1095 struct dsa_switch *ds = p->parent;
1096
Andrew Lunn7f854422016-01-06 20:11:18 +01001097 p->phy = mdiobus_get_phy(ds->slave_mii_bus, addr);
Russell Kingd25b8e72015-10-03 18:09:07 +01001098 if (!p->phy) {
1099 netdev_err(slave_dev, "no phy at %d\n", addr);
Florian Fainellic305c162015-03-10 16:57:12 -07001100 return -ENODEV;
Russell Kingd25b8e72015-10-03 18:09:07 +01001101 }
Florian Fainellic305c162015-03-10 16:57:12 -07001102
1103 /* Use already configured phy mode */
Florian Fainelli211c5042015-08-08 12:58:57 -07001104 if (p->phy_interface == PHY_INTERFACE_MODE_NA)
1105 p->phy_interface = p->phy->interface;
Florian Fainellic305c162015-03-10 16:57:12 -07001106 phy_connect_direct(slave_dev, p->phy, dsa_slave_adjust_link,
1107 p->phy_interface);
1108
1109 return 0;
1110}
1111
Florian Fainelli9697f1c2014-12-11 12:49:16 -08001112static int dsa_slave_phy_setup(struct dsa_slave_priv *p,
Florian Fainelli0d8bcdd2014-08-27 17:04:51 -07001113 struct net_device *slave_dev)
1114{
1115 struct dsa_switch *ds = p->parent;
Florian Fainelli0d8bcdd2014-08-27 17:04:51 -07001116 struct device_node *phy_dn, *port_dn;
Florian Fainellice31b312014-08-27 17:04:54 -07001117 bool phy_is_fixed = false;
Florian Fainelli68195632014-09-19 13:07:54 -07001118 u32 phy_flags = 0;
Guenter Roeck19334922015-02-16 21:23:51 -08001119 int mode, ret;
Florian Fainelli0d8bcdd2014-08-27 17:04:51 -07001120
Andrew Lunn189b0d92016-06-04 21:16:58 +02001121 port_dn = ds->ports[p->port].dn;
Guenter Roeck19334922015-02-16 21:23:51 -08001122 mode = of_get_phy_mode(port_dn);
1123 if (mode < 0)
1124 mode = PHY_INTERFACE_MODE_NA;
1125 p->phy_interface = mode;
Florian Fainelli0d8bcdd2014-08-27 17:04:51 -07001126
1127 phy_dn = of_parse_phandle(port_dn, "phy-handle", 0);
1128 if (of_phy_is_fixed_link(port_dn)) {
1129 /* In the case of a fixed PHY, the DT node associated
1130 * to the fixed PHY is the Port DT node
1131 */
1132 ret = of_phy_register_fixed_link(port_dn);
1133 if (ret) {
Russell Kingd25b8e72015-10-03 18:09:07 +01001134 netdev_err(slave_dev, "failed to register fixed PHY: %d\n", ret);
Florian Fainelli9697f1c2014-12-11 12:49:16 -08001135 return ret;
Florian Fainelli0d8bcdd2014-08-27 17:04:51 -07001136 }
Florian Fainellice31b312014-08-27 17:04:54 -07001137 phy_is_fixed = true;
Florian Fainelli0d8bcdd2014-08-27 17:04:51 -07001138 phy_dn = port_dn;
1139 }
1140
Vivien Didelot9d490b42016-08-23 12:38:56 -04001141 if (ds->ops->get_phy_flags)
1142 phy_flags = ds->ops->get_phy_flags(ds, p->port);
Florian Fainelli68195632014-09-19 13:07:54 -07001143
Florian Fainellicd28a1a2015-03-10 16:57:13 -07001144 if (phy_dn) {
Russell Kingd25b8e72015-10-03 18:09:07 +01001145 int phy_id = of_mdio_parse_addr(&slave_dev->dev, phy_dn);
1146
Florian Fainellicd28a1a2015-03-10 16:57:13 -07001147 /* If this PHY address is part of phys_mii_mask, which means
1148 * that we need to divert reads and writes to/from it, then we
1149 * want to bind this device using the slave MII bus created by
1150 * DSA to make that happen.
1151 */
Russell Kingd25b8e72015-10-03 18:09:07 +01001152 if (!phy_is_fixed && phy_id >= 0 &&
1153 (ds->phys_mii_mask & (1 << phy_id))) {
1154 ret = dsa_slave_phy_connect(p, slave_dev, phy_id);
1155 if (ret) {
1156 netdev_err(slave_dev, "failed to connect to phy%d: %d\n", phy_id, ret);
Florian Fainellicd28a1a2015-03-10 16:57:13 -07001157 return ret;
Russell Kingd25b8e72015-10-03 18:09:07 +01001158 }
Florian Fainellicd28a1a2015-03-10 16:57:13 -07001159 } else {
1160 p->phy = of_phy_connect(slave_dev, phy_dn,
1161 dsa_slave_adjust_link,
1162 phy_flags,
1163 p->phy_interface);
1164 }
1165 }
Florian Fainelli0d8bcdd2014-08-27 17:04:51 -07001166
Florian Fainellice31b312014-08-27 17:04:54 -07001167 if (p->phy && phy_is_fixed)
1168 fixed_phy_set_link_update(p->phy, dsa_slave_fixed_link_update);
1169
Florian Fainelli0d8bcdd2014-08-27 17:04:51 -07001170 /* We could not connect to a designated PHY, so use the switch internal
1171 * MDIO bus instead
1172 */
Andrew Lunnb31f65f2014-11-05 19:47:28 +01001173 if (!p->phy) {
Florian Fainellicd28a1a2015-03-10 16:57:13 -07001174 ret = dsa_slave_phy_connect(p, slave_dev, p->port);
Russell Kingd25b8e72015-10-03 18:09:07 +01001175 if (ret) {
1176 netdev_err(slave_dev, "failed to connect to port %d: %d\n", p->port, ret);
Florian Fainellic305c162015-03-10 16:57:12 -07001177 return ret;
Russell Kingd25b8e72015-10-03 18:09:07 +01001178 }
Andrew Lunnb31f65f2014-11-05 19:47:28 +01001179 }
Florian Fainelli9697f1c2014-12-11 12:49:16 -08001180
Andrew Lunn22209432016-01-06 20:11:13 +01001181 phy_attached_info(p->phy);
1182
Florian Fainelli9697f1c2014-12-11 12:49:16 -08001183 return 0;
Florian Fainelli0d8bcdd2014-08-27 17:04:51 -07001184}
1185
Andrew Lunn448b4482015-05-06 01:09:56 +02001186static struct lock_class_key dsa_slave_netdev_xmit_lock_key;
1187static void dsa_slave_set_lockdep_class_one(struct net_device *dev,
1188 struct netdev_queue *txq,
1189 void *_unused)
1190{
1191 lockdep_set_class(&txq->_xmit_lock,
1192 &dsa_slave_netdev_xmit_lock_key);
1193}
1194
Florian Fainelli24462542014-09-18 17:31:22 -07001195int dsa_slave_suspend(struct net_device *slave_dev)
1196{
1197 struct dsa_slave_priv *p = netdev_priv(slave_dev);
1198
Florian Fainelli24462542014-09-18 17:31:22 -07001199 if (p->phy) {
1200 phy_stop(p->phy);
1201 p->old_pause = -1;
1202 p->old_link = -1;
1203 p->old_duplex = -1;
1204 phy_suspend(p->phy);
1205 }
1206
1207 return 0;
1208}
1209
1210int dsa_slave_resume(struct net_device *slave_dev)
1211{
1212 struct dsa_slave_priv *p = netdev_priv(slave_dev);
1213
1214 netif_device_attach(slave_dev);
1215
1216 if (p->phy) {
1217 phy_resume(p->phy);
1218 phy_start(p->phy);
1219 }
1220
1221 return 0;
1222}
1223
Guenter Roeckd87d6f42015-02-24 13:15:32 -08001224int dsa_slave_create(struct dsa_switch *ds, struct device *parent,
Andrew Lunn83c0afa2016-06-04 21:17:07 +02001225 int port, const char *name)
Lennert Buytenhek91da11f2008-10-07 13:44:02 +00001226{
Florian Fainellibadf3ad2016-04-27 11:45:14 -07001227 struct dsa_switch_tree *dst = ds->dst;
Andrew Lunn83c0afa2016-06-04 21:17:07 +02001228 struct net_device *master;
Lennert Buytenhek91da11f2008-10-07 13:44:02 +00001229 struct net_device *slave_dev;
1230 struct dsa_slave_priv *p;
1231 int ret;
1232
Andrew Lunn83c0afa2016-06-04 21:17:07 +02001233 master = ds->dst->master_netdev;
1234 if (ds->master_netdev)
1235 master = ds->master_netdev;
1236
Tom Gundersenc835a672014-07-14 16:37:24 +02001237 slave_dev = alloc_netdev(sizeof(struct dsa_slave_priv), name,
1238 NET_NAME_UNKNOWN, ether_setup);
Lennert Buytenhek91da11f2008-10-07 13:44:02 +00001239 if (slave_dev == NULL)
Guenter Roeckd87d6f42015-02-24 13:15:32 -08001240 return -ENOMEM;
Lennert Buytenhek91da11f2008-10-07 13:44:02 +00001241
1242 slave_dev->features = master->vlan_features;
Wilfried Klaebe7ad24ea2014-05-11 00:12:32 +00001243 slave_dev->ethtool_ops = &dsa_slave_ethtool_ops;
Bjørn Mork2fcc8002013-08-30 18:08:46 +02001244 eth_hw_addr_inherit(slave_dev, master);
Phil Sutter0a5f1072015-08-18 10:30:41 +02001245 slave_dev->priv_flags |= IFF_NO_QUEUE;
Florian Fainelli3e8a72d2014-08-27 17:04:46 -07001246 slave_dev->netdev_ops = &dsa_slave_netdev_ops;
Jiri Pirko9d47c0a2015-05-10 09:47:47 -07001247 slave_dev->switchdev_ops = &dsa_slave_switchdev_ops;
Florian Fainellif37db852015-09-23 18:19:58 -07001248 SET_NETDEV_DEVTYPE(slave_dev, &dsa_type);
Stephen Hemmingerd442ad42009-01-06 16:45:26 -08001249
Andrew Lunn448b4482015-05-06 01:09:56 +02001250 netdev_for_each_tx_queue(slave_dev, dsa_slave_set_lockdep_class_one,
1251 NULL);
1252
Lennert Buytenhek91da11f2008-10-07 13:44:02 +00001253 SET_NETDEV_DEV(slave_dev, parent);
Andrew Lunn189b0d92016-06-04 21:16:58 +02001254 slave_dev->dev.of_node = ds->ports[port].dn;
Lennert Buytenhek91da11f2008-10-07 13:44:02 +00001255 slave_dev->vlan_features = master->vlan_features;
1256
1257 p = netdev_priv(slave_dev);
Lennert Buytenhek91da11f2008-10-07 13:44:02 +00001258 p->parent = ds;
1259 p->port = port;
Andrew Lunn39a7f2a2016-06-04 21:17:03 +02001260 p->xmit = dst->tag_ops->xmit;
Alexander Duyck50753142014-09-15 13:00:19 -04001261
Florian Fainelli0d8bcdd2014-08-27 17:04:51 -07001262 p->old_pause = -1;
1263 p->old_link = -1;
1264 p->old_duplex = -1;
1265
Andrew Lunnc8b09802016-06-04 21:16:57 +02001266 ds->ports[port].netdev = slave_dev;
Lennert Buytenhek91da11f2008-10-07 13:44:02 +00001267 ret = register_netdev(slave_dev);
1268 if (ret) {
Joe Perchesa2ae6002014-11-09 16:32:46 -08001269 netdev_err(master, "error %d registering interface %s\n",
1270 ret, slave_dev->name);
Andrew Lunnc8b09802016-06-04 21:16:57 +02001271 ds->ports[port].netdev = NULL;
Lennert Buytenhek91da11f2008-10-07 13:44:02 +00001272 free_netdev(slave_dev);
Guenter Roeckd87d6f42015-02-24 13:15:32 -08001273 return ret;
Lennert Buytenhek91da11f2008-10-07 13:44:02 +00001274 }
1275
1276 netif_carrier_off(slave_dev);
1277
Andrew Lunn0071f562016-01-06 20:11:20 +01001278 ret = dsa_slave_phy_setup(p, slave_dev);
1279 if (ret) {
1280 netdev_err(master, "error %d setting up slave phy\n", ret);
Florian Fainelli73dcb552016-02-17 18:43:22 -08001281 unregister_netdev(slave_dev);
Andrew Lunn0071f562016-01-06 20:11:20 +01001282 free_netdev(slave_dev);
1283 return ret;
1284 }
1285
Guenter Roeckd87d6f42015-02-24 13:15:32 -08001286 return 0;
Lennert Buytenhek91da11f2008-10-07 13:44:02 +00001287}
Florian Fainellib73adef2015-02-24 13:15:33 -08001288
Neil Armstrongcda5c152015-12-07 13:57:35 +01001289void dsa_slave_destroy(struct net_device *slave_dev)
1290{
1291 struct dsa_slave_priv *p = netdev_priv(slave_dev);
1292
1293 netif_carrier_off(slave_dev);
1294 if (p->phy)
1295 phy_disconnect(p->phy);
1296 unregister_netdev(slave_dev);
1297 free_netdev(slave_dev);
1298}
1299
Florian Fainellib73adef2015-02-24 13:15:33 -08001300static bool dsa_slave_dev_check(struct net_device *dev)
1301{
1302 return dev->netdev_ops == &dsa_slave_netdev_ops;
1303}
1304
Vivien Didelot6debb682016-03-13 16:21:34 -04001305static int dsa_slave_port_upper_event(struct net_device *dev,
1306 unsigned long event, void *ptr)
Florian Fainellib73adef2015-02-24 13:15:33 -08001307{
Vivien Didelot6debb682016-03-13 16:21:34 -04001308 struct netdev_notifier_changeupper_info *info = ptr;
1309 struct net_device *upper = info->upper_dev;
Florian Fainellib73adef2015-02-24 13:15:33 -08001310 int err = 0;
1311
Vivien Didelot6debb682016-03-13 16:21:34 -04001312 switch (event) {
1313 case NETDEV_CHANGEUPPER:
1314 if (netif_is_bridge_master(upper)) {
1315 if (info->linking)
1316 err = dsa_slave_bridge_port_join(dev, upper);
1317 else
1318 dsa_slave_bridge_port_leave(dev);
1319 }
Florian Fainellib73adef2015-02-24 13:15:33 -08001320
Vivien Didelot6debb682016-03-13 16:21:34 -04001321 break;
1322 }
1323
1324 return notifier_from_errno(err);
1325}
1326
1327static int dsa_slave_port_event(struct net_device *dev, unsigned long event,
1328 void *ptr)
1329{
1330 switch (event) {
1331 case NETDEV_CHANGEUPPER:
1332 return dsa_slave_port_upper_event(dev, event, ptr);
1333 }
1334
1335 return NOTIFY_DONE;
Florian Fainellib73adef2015-02-24 13:15:33 -08001336}
1337
1338int dsa_slave_netdevice_event(struct notifier_block *unused,
1339 unsigned long event, void *ptr)
1340{
Vivien Didelot6debb682016-03-13 16:21:34 -04001341 struct net_device *dev = netdev_notifier_info_to_dev(ptr);
Florian Fainellib73adef2015-02-24 13:15:33 -08001342
Vivien Didelot6debb682016-03-13 16:21:34 -04001343 if (dsa_slave_dev_check(dev))
1344 return dsa_slave_port_event(dev, event, ptr);
Florian Fainellib73adef2015-02-24 13:15:33 -08001345
Florian Fainellib73adef2015-02-24 13:15:33 -08001346 return NOTIFY_DONE;
1347}